Visit Our UNIX and Linux User Community

Compare two files Field by field and output the result in another file

Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Compare two files Field by field and output the result in another file
# 1  
Old 07-20-2012
Power Compare two files Field by field and output the result in another file

Hi Friends,

Need Help. I have file1.txt as




Difference in Nth line Nth field and dispaly the fields

like in the above example there is a difference in 4th line 2nd field and there is a difference in 4th line 8th field.

Number of Mismatches=2
Differences are
4th line 2nd field
4th line 8th field

Please help Smilie I am very new to Shell scripting Smilie .

Last edited by Franklin52; 07-20-2012 at 05:44 PM.. Reason: Please use code tags for data and code samples, thank you
# 2  
Old 07-20-2012
paste -d '|' File1.txt File2.txt | awk -F '|' '{c=NF/2;for(i=1;i<=c;i++)if($i!=$(i+c))printf "line %-5s field %s\n",NR,i}'

This User Gave Thanks to Ygor For This Post:
# 3  
Old 07-20-2012
@Ygor: Did you notice "|" at the beginning of every line?
# 4  
Old 07-20-2012
@ygor : Thanks for the quick response. I got the answer but i am getting one count extra than the exact output .

Expected Output :

4th line 2nd field
4th line 8th field

Actual Output :

4th line 3nd field
4th line 9th field

Please help in this .. I tried but i am not getting the exact out.

Thanks in advance.

Note : we have "|" at the beginning of every line.
# 5  
Old 07-20-2012
Just use i-1 instead of i Smilie
This User Gave Thanks to PikK45 For This Post:
# 6  
Old 07-20-2012
Thanks So much Pikk45 Smilie I have just joined the forum to learn things in unix shell scripting and you pepole helping a lot .. Thanks again @ygor and Pikka45 Smilie Smilie
# 7  
Old 07-20-2012
What I did is just a solution that anyone can give!! the advisable thing is to learn what that line does exactly!!

Learn bit by bit Smilie

Previous Thread | Next Thread
Test Your Knowledge in Computers #333
Difficulty: Easy
Linux was first developed as an alternative to Windows XP.
True or False?

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Combine Similar Output from the 2nd field w.r.t 1st Field

Hi, For example: I have: HostA,XYZ HostB,XYZ HostC,ABC I would like the output to be: HostA,HostB: XYZ HostC:ABC How can I achieve this? So far what I though of is: (1 Reply)
Discussion started by: alvinoo
1 Replies

2. Shell Programming and Scripting

Use bash command on awk field and output the result

Hello, I want to run a field from an awk command through a command in bash. For example my input file is 1,2,3 20,30,40 60,70,80 I want tot run $2 thought the command date +%d/%m/%y -d"01/01/15 + $2 days -1 day" and get the output 1,02/01/15,3 20,30/01/15,40 60,11/03/15,80 ... (2 Replies)
Discussion started by: garethsays
2 Replies

3. Shell Programming and Scripting

Compare two CSV files and put the difference in third file with line no,field no and diff value.

I am having two csv files i need to compare these files and the output file should have the information of the differences at the field level. For Example, File 1: A,B,C,D,E,F 1,2,3,4,5,6 File 2: A,C,B,D,E,F 1,2,4,5,5,6 out put file: (12 Replies)
Discussion started by: karingulanagara
12 Replies

4. Shell Programming and Scripting

Plz Help. Compare 2 files field by field and get the output in another file.

Hi Freinds, I have 2 files . one is source.txt and second one is target.txt. I want to keep source.txt as baseline and compare target.txt. please find the data in 2 files and Expected output. Source.txt 1|HYD|NAG|TRA|34.5|1234 2|CHE|ESW|DES|36.5|134 3|BAN|MEH|TRA|33.5|234... (5 Replies)
Discussion started by: i150371485
5 Replies

5. Shell Programming and Scripting

Compare a common field in two files and append a column from File 1 in File2

Hi Friends, I am new to Shell Scripting and need your help in the below situation. - I have two files (File 1 and File 2) and the contents of the files are mentioned below. - "Application handle" is the common field in both the files. (NOTE :- PLEASE REFER TO THE ATTACHMENT "Compare files... (2 Replies)
Discussion started by: Santoshbn
2 Replies

6. Shell Programming and Scripting

Compare Field in Current Line with Field in Previous

Hi Guys I have the following file Essentially, I am trying to find the right awk/sed syntax in order to produce the following 3 distinct files from the file above: Basically, I want to print the lines of the file as long as the second field of the current line is equal to the... (9 Replies)
Discussion started by: moutaye
9 Replies

7. UNIX for Dummies Questions & Answers

compare two files based on common field in unix

I have two files in UNIX. 1st file is Entity and Second File is References. 1st File has only one column named Entity ID and 2nd file has two columns Entity ID | Person ID. I want to produce a output file where entity id's are matching in both the files. Entity File 624197 624252 624264... (4 Replies)
Discussion started by: PRS
4 Replies

8. Shell Programming and Scripting

Compare two files and output difference, by first field using awk.

It seems like a common task, but I haven't been able to find the solution. vitallog.txt 1310,John,Hancock 13211,Steven,Mills 122,Jane,Doe 138,Thoms,Doe 1500,Micheal,May vitalinfo.txt 12122,Jane,Thomas 122,Janes,Does 123,Paul,Kite **OUTPUT** vitalfiltered.txt 12122,Jane,Thomas... (2 Replies)
Discussion started by: charles33
2 Replies

9. Shell Programming and Scripting

AWK: Pattern match between 2 files, then compare a field in file1 as > or < field in file2

First, thanks for the help in previous posts... couldn't have gotten where I am now without it! So here is what I have, I use AWK to match $1 and $2 as 1 string in file1 to $1 and $2 as 1 string in file2. Now I'm wondering if I can extend this AWK command to incorporate the following: If $1... (4 Replies)
Discussion started by: right_coaster
4 Replies

10. Shell Programming and Scripting

AWK to compare two files for each field value

I have "n" files in directory A and "n" files in directory B. The files are expected to be the same with same data. Each file has 14 columns and "x" rows. Of the 14 column, 2 columns are to be considered as key identifiers. Based on this unique combination, I need to compare each field value... (2 Replies)
Discussion started by: Sangtha
2 Replies

Featured Tech Videos